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"Tungsten with a mass numer of 185 and atomic number of 74, decays by beta emissions. Identify the product of the nuclear reaction by its atomic symboll, mass number and atomic number?".
A piece of lead is placed into a graduated cylinder. The level of the liquid rises from 235 to 305 mL. What is the mass in grams of the lead if the density of lead is 11.3g/cm3?
Assume that the wet limestone process requires 1 metric ton of CaCO3 to remove 90% of the sulfer from 4 metric tons of coel containing 2% S. Assume that the sulfur product is CaSO4. Calculate the percentage of the limestone converted to calcium su..
have the same melting point.How can you determine if they are the same without using any form of spectroscopy? Explain in details.
Calculate the volume of 6 M NaOH required to react completely with the amount of methyl salicylate you used. How much of the 6 M NaOH that you used was in excess of the theoretical amount?
A study of the system 4NH3(g)+7O2(g)--2N2O4(g)+6H2O(g), was carried out. A system was prepared with [NH3]=[O2]=3.60 M as the only components initially.
Utilizing correct and complete arrow formalism, state the complete mechanism for free radical polymerization of styrene
The trace metal detection test is utilized to detect traces of metal left by carrying a gun in contact with skin. The test requires a 0.20% w/v solution of 8-hydroxyquinoline (C9H7NO) dissolved in isopropanol rubbing alcohol. Require to prepare 25..
With initial concenration of A and B of 0.04 mol/L, the rate of formation of AB is measured at 0.005 mmol/(Ls). When the initial concentration of A is raised to 0.07 mol/L, with that of B the same as before, the rate of formation of AB increases t..
Write a balanced chemical equation for the following reaction in an acidic solution. Cr2O72-(aq)+Br-(aq)>>Cr3+(aq)+Br2(aq)
The equilibrium constant is always greater than one for an extensive reaction 6.The value of q is always equal to the value of w for a reversible reaction 7.The energy change of the universe for any spontaneous process is always positive
if the empty cylinder has the mass of 94.2g and the cylinder with water has the mass of 138.7 what is the mass of water
Assuming that all "other" reactants used in the synthesis of the complex are in excess, calculate the theoretical yield of the complex.
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